CN102688080A - Nasolacrimal duct embolism body capable of automatically adjusting tear amount and matched installation tool thereof - Google Patents
Nasolacrimal duct embolism body capable of automatically adjusting tear amount and matched installation tool thereof Download PDFInfo
- Publication number
- CN102688080A CN102688080A CN2012101821270A CN201210182127A CN102688080A CN 102688080 A CN102688080 A CN 102688080A CN 2012101821270 A CN2012101821270 A CN 2012101821270A CN 201210182127 A CN201210182127 A CN 201210182127A CN 102688080 A CN102688080 A CN 102688080A
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- CN
- China
- Prior art keywords
- cap
- tear
- nasolacrimal duct
- shell
- capillary retention
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00772—Apparatus for restoration of tear ducts
Abstract
The invention relates to a nasolacrimal duct embolism body capable of automatically adjusting tear amount and a matched installation tool thereof. A ring flange for fixing is arranged at one end of the embolism body; the other end of the embolism body has a round-head conical structure; a plurality of annular carinate bumps are arranged on a middle segment; an axial capillary retention tube and a liquid storing chamber are arranged in the center of the embolism body; and one end of the capillary retention tube is provided with an outwardly-convex conical surface which is communicated with the liquid storing chamber. An installation tool special for the embolism body comprises a shell of which the two ends are conical, a sleeve, a needle rod, a connecting rod and a slide button, wherein one end of the shell is provided with a needle-shaped conical rod; the sleeve passes through the other end of the shell, and is fixed on a central shaft of the shell; the end part of the sleeve which extends out of the shell end is provided with an inwardly-concave conical surface which is matched with the outwardly-convex conical surface of the capillary retention tube of the embolism body; the needle rod is arranged in the sleeve, and is movable; and one end of the needle rod is connected with the slide button arranged on a shell wall through the connecting rod. The embolism body can be used for automatically and dynamically adjusting the tear amount in orbits, and relieving a dry eye symptom. Due to the adoption of the matched installation tool, great convenience is brought to operation of a doctor.
Description
Technical field
The invention belongs to technical field of medical instruments, be specifically related to a kind of nasolacrimal duct cap and lay instrument supporting of automatic adjusting tear amount with it.
Background technology
The angle conjunctival xerosis is because the lazy weight of tear is perhaps of poor quality, the syndrome of the eye dryness that causes.Severe forms of dry eye can cause the damage of corneal epithelium.The lazy weight of tear: the normal person, the speed of every eye secretion tear is: 1 μ L/ minute.Hyposecretion or evaporation capacity are crossed the deficiency that metropolis causes tear quantity.Tear of poor quality: normal tear forms one deck tear film at the eye table, and the tear film is divided into three layers from outside to inside: the quality that unusual tear appears in lipid layer, water layer, mucin layer, any one deck all can reduce.
The angle conjunctival xerosis is commonly called as the tear matter that " xerophthalmia " be meant that any reason causes or amount is unusual or kinetics is unusual, causes the tear membrane stability to descend, and with ophthalmic uncomfortable with (or) general name of the multiple disease of eye table organization characteristics of lesion.
Common symptom comprises that eyes do dry and astringent puckeryly, tired easily, and sleepy can be itched, and foreign body sensation is arranged, the pain burning sensation, eyelid is tight heavy, the secretions thickness, aversion to wind, photophobia, stimulate to external world very sensitive, temporary blurred vision; Sometimes eyes are too dried, and basic oligodacrya stimulates the reflexive lacrimal secretion on the contrary and causes the symptom that usually drops tears; Can be red and swollen than the severe patient eyes, hyperemia, keratinization, corneal epithelium breaks skin and has filament to adhere to, and long-term injury then can cause the angle conjunctive disorder, and can affect one's power of vision.
The keratitis of fissura palpebrae portion.The breakup time of tear film of this disease shortens, and can cause filamentary keratitis, angle conjunctival xerosis, shows as the minimizing of the tear at margo palpebrae edge.The SchirmerShi experiment, the tear amount reduces, and this disease usually shows with idopathy in the old people, but most part performance that is common in the Sjogrens syndrome at eye, the Sjogrens syndrome comprises: xerostomia, eye are done and arthritis.Also can betide many autoimmune disease, and systemic disease, like sarcoma and Waldenstroms macroglobulinemia.Therapeutic Method is to substitute with the artificial tears, can wear protective glasses on one's body or block puncta serious patient.
Be that tear quality and quantity or the kinetics that causes because of a variety of causes causes the tear film unstable unusually, cause table organization's pathological changes, just can cause eye the dry and astringent malaise symptoms that waits to occur, cause that it is the general name of the various disease conditions of characteristic that eye is shown a pathological changes.
Common symptom is the dry and astringent and foreign body sensation of eye, and other symptoms have burn feeling, gargalesthesia, photophobia, erythralgia, blurred vision to be prone to general fatigue, haircuts shape secretions etc.If any above-mentioned symptom, then should carefully inquire medical history, seek the cause of disease.Do for serious eye, should inquire whether with xerostomia, arthralgia.
The individual variation of dry eye symptoms is very big.Most patient complaint eye foreign body sensation, burn feeling and general ophthalmic uncomfortable.These discomforts typically are described as the scraping sense, and eye is done, pain, grains of sand sense, sensation of pricking or burn feeling.These senses of discomfort are the symptom of xerophthalmia often, because the surface of cornea spreads all over sensory nerve ending.There is the patient of significant proportion that photophobia and intermittent fuzzy or other visual problems are arranged.To account for the ratio of ocular disease quite high for xerophthalmia clinically.
The patient of xerophthalmia usually tells that the eyes of oneself are easy to fatigue, makes reading and see that difficulty takes place TV.It is that the frequency of twinkling obviously reduces when the job demand attention is concentrated that these reason of difficulty take place.The normal person twinkles once average 5 seconds, and when the frequency of twinkling obviously reduced, the time of tear film evaporation will obviously prolong.If twinkle deficiency, the time that the angle conjunctiva exposes will surpass more than 10 seconds, thereby causes forming one or more doing at anterior corneal surface.Ratio appears in this situation in teenager very high, plays network game for a long time, and with medium readings such as mobile phone etc., it is of a specified duration excessively that contact lens is worn the time for a long time, the xerophthalmia crowd development that becomes younger occurred.
The treatment means of present xerophthalmia.Many dried cloudy patients possibly be that aqueous humor lacks and evaporated strong two kinds of factors and deposit, and before the begin treatment xerophthalmia, should which type to be main with at first clearly, so that take the specific aim measure.Xerophthalmia is a chronic disease, needs long-term treatment more, needs to encourage the patient to adhere to treatment.The advantage of widely popular lacrimal passage thromboembolism implantation can be carried out auxiliary treatment to xerophthalmia for a long time, can take out through normal saline flushing, and shortcoming is not have regulatory function; Severe forms of dry eye disease and the slight means that all adopt identical cap shutoff, but the phenomenon that can cause tear to overflow, problem such as cause inflammation.The shutoff of another kind of employing lacrimal point laser, this is irreversible operation.
Summary of the invention
The nasolacrimal duct cap and the lay instrument supporting that the purpose of this invention is to provide a kind of automatic adjusting tear amount with it.
The nasolacrimal duct cap of automatic adjusting tear amount of the present invention; The one of which end is the fixing ring flange of usefulness; The other end is the round end taper, and there are several annular ridge projections in the stage casing, and the cap center has axial capillary retention pipe and fluid reservoir; One end of capillary retention pipe is that the evagination taper seat is connected with fluid reservoir, and the diameter of capillary retention pipe is 0.1mm-0.6mm.
Among the present invention, diameter range 0.1mm-0.6mm capillaceous; Diameter is too small, and tear can not get into capillary tube, and perhaps tear can not flow in capillary tube; Diameter is too big, causes the direct loss of tear, can not effectively improve xerophthalmia.The diameter of preferred capillary retention pipe is 0.2-0.4mm.
Among the present invention, preferred annular ridge projections is 2-3, and spacing each other is 0.1mm.
Usually, the diameter of cap is 0.5mm-1mm; The diameter of ring flange can be 0.6mm-2mm; The diameter of annular ridge projections can be selected 0.6-2mm.
Cap structure of the present invention; Can make it fixing by well in tear stains; Can be because of user daily life environment and the variation of condition variation occurrence positions; The flange plate structure and the lacrimal point on top stop, prevent that cap from slipping in the tear stains, and following annulus ridge projections prevents that cap from coming off backward in tear stains.Guaranteeing that cap effectively is fixed in patient's tear stains normally plays a role; After tear got into fluid reservoir, the capillary retention pipe can get into the tear siphon in the pipe.When tear was few, the tear in the capillary retention pipe played the effect of a viscous flow or shutoff, guarantees the tear content in the eye socket.After tear in the eye socket surpasses normal amount, occur one and overflow attitude, the tear that gets in the fluid reservoir forms certain forward pressure reduction, promotes tear and flows out the capillary retention pipe, flows into nasolacrimal duct and gets into nasal cavity.
Be used to lay the specific purpose tool of the nasolacrimal duct cap of automatic adjusting tear amount of the present invention, comprise that two ends are the housing of taper, sleeve pipe; Shank, connecting rod and sliding button, an end of housing has the needle-like conical rod; Sleeve pipe passes through the other end of housing; Be fixed on the central shaft of housing, the end that sleeve pipe stretches out shell ends has the indent taper seat that the evagination taper seat with cap capillary retention pipe is complementary, and shank places sleeve pipe movable; One end of shank and an end of connecting rod are fixed, and the other end of connecting rod links to each other with the sliding button that is installed in housing wall.
Generally, making the diameter of housing is 10mm-30mm.Needle-like conical rod head diameter is 0.1mm.
This instrument can utilize the needle-like conical rod patient's nasolacrimal duct is dredged and to be expanded earlier when laying cap; Then cap is enclosed within on the movable shank; The indent taper seat of cannula tip cooperates with the evagination taper seat of cap capillary retention pipe; The doctor can drive mobilizable shank regression through sliding button easily, and cap and instrument are broken away from, and cap is stayed in the lacrimal passage.
The nasolacrimal duct cap of automatic adjusting tear amount of the present invention can adopt pure titanium, medical stainless steel, Nitinol, silicone, medical silica-gel, polyethylene or chitin material to form.The specific purpose tool of laying cap can be material preparations such as plastics or metal.
Cap of the present invention utilizes siphonage capillaceous; Capillary retention pipe through containing tear carries out dynamic adjustment automatically to the tear amount in the eye socket; Can avoid other caps use in patient the situation that tear overflows eye socket appears; Effectively increase the rational capacity of tear in the eye socket simultaneously, alleviate because the various ophthalmic uncomfortables that xerophthalmia causes are realized the science of xerophthalmia patient symptom is improved.Can prevent tear effectively, cause that patient causes the possibility of infection with the hands wiping because nasolacrimal duct obstruction causing eye socket overflows; Reduce because nasolacrimal duct blocks fully, lack the possibility of the nasolacrimal duct inflammation of washing away formation of tear.The cap special use is laid instrument and is very easy to doctor's operation.
Description of drawings
Fig. 1 is the cap profile;
Fig. 2 is an instrument sketch map of laying cap;
Among the figure: 1. ring flange, 2. annular ridge projections, 3. capillary retention pipe, 4. cap, 5. fluid reservoir
6. shank, 7. housing, 8. needle-like conical rod, 9. connecting rod, 10. sliding button, 11. sleeve pipes.
The practical implementation method
Further specify the present invention below in conjunction with accompanying drawing.
With reference to Fig. 1; One end of the nasolacrimal duct cap 4 of automatic adjusting tear amount of the present invention is the fixing ring flange 1 of usefulness; The other end is the round end taper, and there are several annular ridge projections 2 in the stage casing, and the cap center has axial capillary retention pipe 3 and fluid reservoir 5; One end of capillary retention pipe 3 is that the evagination taper seat is connected with fluid reservoir 5, and the diameter of capillary retention pipe is 0.1mm-0.6mm.
Embodiment, cap adopts internal diameter 0.3mm, and the pure titanium metal pipe of external diameter 1.2mm is made; The cap diameter is 1mm, ring flange diameter 1.4mm, and annular ridge projections has 3; Spacing each other is 0.1mm, and the diameter of annular ridge projections is 1.2mm, and the diameter of capillary retention pipe is 0.3mm.Implant xerophthalmia patient lacrimal point, dry eye symptoms is alleviated, and does not have the tear situation of overflowing.
With reference to Fig. 2, be used to lay the specific purpose tool of the nasolacrimal duct cap of above-mentioned automatic adjusting tear amount, comprise that two ends are the housing 7 of taper; Sleeve pipe 11, shank 6, connecting rod 9 and sliding button 10; One end of housing 7 has needle-like conical rod 8, and sleeve pipe 11 passes through the other end of housing 7, is fixed on the central shaft of housing 7; The end that sleeve pipe 11 stretches out shell ends has the indent taper seat that the evagination taper seat with cap capillary retention pipe 3 is complementary; Shank 6 places sleeve pipe 11 movable, and an end of shank 6 and an end of connecting rod 9 are fixed, and the other end of connecting rod 9 links to each other with the sliding button that is installed in housing wall 10.
Claims (5)
1. nasolacrimal duct cap of automatically regulating the tear amount; An end that it is characterized in that this cap (4) is the fixing ring flange of usefulness (1); The other end is the round end taper, and there are several annular ridge projections (2) in the stage casing, and the cap center has axial capillary retention pipe (3) and fluid reservoir (5); One end of capillary retention pipe (3) is that the evagination taper seat is connected with fluid reservoir (5), and the diameter of capillary retention pipe (3) is 0.1mm-0.6mm.
2. the nasolacrimal duct cap of automatic adjusting tear amount according to claim 1, the diameter that it is characterized in that capillary retention pipe (3) is 0.2-0.4mm.
3. the nasolacrimal duct cap of automatic adjusting tear amount according to claim 1 is characterized in that annular ridge projections (2) has 2-3, and spacing each other is 0.1mm.
4. according to the nasolacrimal duct cap of the arbitrary described automatic adjusting tear amount of claim 1-3, it is characterized in that cap is pure titanium, medical stainless steel, Nitinol, silicone, medical silica-gel, polyethylene or chitin material.
5. specific purpose tool that is used to lay the nasolacrimal duct cap of the described automatic adjusting tear amount of claim 1; It is characterized in that comprising that two ends are the housing of taper (7), sleeve pipe (11), shank (6); Connecting rod (9) and sliding button (10); One end of housing (7) has needle-like conical rod (8), and sleeve pipe (11) passes through the other end of housing (7), is fixed on the central shaft of housing (7); The end that sleeve pipe (11) stretches out shell ends has the indent taper seat that the evagination taper seat with cap capillary retention pipe (3) is complementary; Shank (6) places sleeve pipe (11) movable, and an end of an end of shank (6) and connecting rod (9) is fixed, and the other end of connecting rod (9) links to each other with the sliding button that is installed in housing wall (10).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210182127.0A CN102688080B (en) | 2012-06-05 | 2012-06-05 | Nasolacrimal duct embolism body capable of automatically adjusting tear amount and matched installation tool thereof |
US13/908,378 US9561130B2 (en) | 2012-06-05 | 2013-06-03 | Nasolacrimal plugs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210182127.0A CN102688080B (en) | 2012-06-05 | 2012-06-05 | Nasolacrimal duct embolism body capable of automatically adjusting tear amount and matched installation tool thereof |
Publications (2)
Publication Number | Publication Date |
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CN102688080A true CN102688080A (en) | 2012-09-26 |
CN102688080B CN102688080B (en) | 2015-03-18 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201210182127.0A Active CN102688080B (en) | 2012-06-05 | 2012-06-05 | Nasolacrimal duct embolism body capable of automatically adjusting tear amount and matched installation tool thereof |
Country Status (2)
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US (1) | US9561130B2 (en) |
CN (1) | CN102688080B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015007139A1 (en) * | 2013-07-15 | 2015-01-22 | 广州卫视博生物科技有限公司 | Canalicular barrier core |
CN105664265A (en) * | 2016-01-28 | 2016-06-15 | 菏泽医学专科学校 | Novel degradable lacrimal plug and preparation method thereof |
CN114631929A (en) * | 2022-05-18 | 2022-06-17 | 茂名市人民医院 | Lacrimal passage suppository with adjustable inner diameter |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2989814A1 (en) | 2015-06-16 | 2016-12-22 | The Regents Of The University Of Colorado, A Body Corporate | Nasolacrimal implants and related methods for tear stimulation |
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US6306114B1 (en) * | 1998-06-16 | 2001-10-23 | Eagle Vision, Inc. | Valved canalicular plug for lacrimal duct occlusion |
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CN202637022U (en) * | 2012-06-05 | 2013-01-02 | 杭州柳茶医药科技有限公司 | Canalis nasolacrimalis embolism body capable of automatically adjusting amount of tear and placing tool thereof |
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US5163959A (en) * | 1990-03-29 | 1992-11-17 | Herrick Robert S | Method for treating an eye with a canalicular implant having a collapsible flared section |
US5741292A (en) * | 1995-10-26 | 1998-04-21 | Eagle Vision | Punctum dilating and plug inserting instrument with push-button plug release |
EP0944371A1 (en) * | 1997-02-04 | 1999-09-29 | Alain Fouere | Meatus plug for lachrymal canal capable of being screwed |
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2012
- 2012-06-05 CN CN201210182127.0A patent/CN102688080B/en active Active
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2013
- 2013-06-03 US US13/908,378 patent/US9561130B2/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US4915684A (en) * | 1988-06-21 | 1990-04-10 | Mackeen Donald L | Method and apparatus for modulating the flow of lacrimal fluid through a punctum and associated canaliculus |
US5417651A (en) * | 1993-07-01 | 1995-05-23 | Guena; Nicolas | Punctum plug and monocanalicular probe for lacrimal pathology |
US5723005A (en) * | 1995-06-07 | 1998-03-03 | Herrick Family Limited Partnership | Punctum plug having a collapsible flared section and method |
CN1227478A (en) * | 1997-02-04 | 1999-09-01 | 阿兰·富埃雷 | Meatus plug for lachrymal capable of being screwed |
US6306114B1 (en) * | 1998-06-16 | 2001-10-23 | Eagle Vision, Inc. | Valved canalicular plug for lacrimal duct occlusion |
US6344047B1 (en) * | 2000-02-02 | 2002-02-05 | Eagle Vision | Instrument for inserting a punctum plug and method for manufacturing the instrument |
US6629533B1 (en) * | 2000-06-30 | 2003-10-07 | Eagle Vision, Inc. | Punctum plug with at least one anchoring arm |
CN101120901A (en) * | 2007-09-28 | 2008-02-13 | 中山大学中山眼科中心 | Tear duct embolism |
CN202637022U (en) * | 2012-06-05 | 2013-01-02 | 杭州柳茶医药科技有限公司 | Canalis nasolacrimalis embolism body capable of automatically adjusting amount of tear and placing tool thereof |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015007139A1 (en) * | 2013-07-15 | 2015-01-22 | 广州卫视博生物科技有限公司 | Canalicular barrier core |
WO2015006999A1 (en) * | 2013-07-15 | 2015-01-22 | 广州卫视博生物科技有限公司 | Lacrimal ductile blocking core |
CN105664265A (en) * | 2016-01-28 | 2016-06-15 | 菏泽医学专科学校 | Novel degradable lacrimal plug and preparation method thereof |
CN114631929A (en) * | 2022-05-18 | 2022-06-17 | 茂名市人民医院 | Lacrimal passage suppository with adjustable inner diameter |
Also Published As
Publication number | Publication date |
---|---|
CN102688080B (en) | 2015-03-18 |
US20130324908A1 (en) | 2013-12-05 |
US9561130B2 (en) | 2017-02-07 |
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Effective date of registration: 20170220 Address after: Hangzhou City, Zhejiang Province, 311231 block of South Xiaoshan economic and Technological Development Zone Spring Road No. 1 Patentee after: Hangzhou Tiancheng Pharmaceutical Co., Ltd. Address before: Block south of Xiaoshan economic and Technological Development Zone Hongda Road, Xiaoshan District of Hangzhou City, Zhejiang Province, No. 79 311231 Patentee before: Hangzhou Liucha Medical Technology Co., Ltd. |